A drum screen with a screen that is easy to replace and a separation device

Abstract

The application discloses a drum screen with a replaceable screen and a separation device, and relates to the technical field of screening equipment.The drum screen comprises a drum frame, a screen, a first locking piece and a second locking piece, and the outer wall of the drum frame is provided with a protruding part.The screen is provided with mounting holes at two sides thereof.The screen is matched with the protruding part through the mounting holes at the two sides to be arranged around the outer circumferential surface of the drum frame.The screen is configured to overlap at the two ends when being arranged around the outer circumferential surface of the drum frame.The first locking piece is detachably connected to the protruding part.The second locking piece is detachably connected to the outer wall of the drum frame, and the second locking piece locks or unlocks the connection between the screen and the drum frame along the outer circumferential surface of the drum frame.In the application, the screen can be preliminarily positioned through the protruding part, and then locked through the first locking piece and the second locking piece, so that the screen can be replaced by one person, and the work efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of screening equipment, specifically to a drum screen and a separation device that facilitates screen replacement. Background Technology

[0002] Currently, livestock and poultry farms require solid-liquid separation of livestock and poultry excrement before further processing. Typically, a separation device with a drum screen is used to sieve the excrement. To achieve better separation, screens with finer mesh are often used. However, after a period of use, hair and crystals in the excrement can clog the screen mesh, necessitating regular screen replacement, which requires multiple operators. Therefore, a drum screen and separation device with easily replaceable screens is needed to improve work efficiency. Utility Model Content

[0003] To address the aforementioned problems, this invention provides a rotary screen and a separation device that facilitates screen replacement.

[0004] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0005] A rotary screen with easy-to-replace screen mesh, comprising:

[0006] A roller frame, wherein the outer wall of the roller frame is provided with protrusions spaced apart along the axial direction;

[0007] The screen is flexible and has a rectangular sheet structure when flattened. Along the circumference of the roller frame, mounting holes are provided on both sides of the screen for fitting onto the protrusions. The screen is fitted around the outer circumference of the roller frame through the mounting holes on both sides and the protrusions. The screen is configured such that when it is fitted around the outer circumference of the roller frame, the beginning and end portions of the screen overlap.

[0008] A first locking member is detachably connected to the protrusion to lock or unlock the connection between the screen and the protrusion.

[0009] The second locking member is detachably connected to the outer wall of the roller frame and is spaced apart at both ends of the screen along the axial direction of the roller frame; the second locking member locks or unlocks the connection between the screen and the roller frame along the outer circumferential surface of the roller frame.

[0010] Optionally, the mounting holes on both sides of the screen are defined as a first mounting hole and a second mounting hole, respectively. Each protrusion corresponds to a first mounting hole and a second mounting hole, so that a first mounting hole and a second mounting hole are fitted together on a protrusion.

[0011] Optionally, the outer circumferential surface of the roller frame is provided with a mounting plate, the length direction of the mounting plate is parallel to the axial direction of the roller frame, and the protrusions are fixed to the mounting plate at intervals.

[0012] Optionally, the mounting plate is equipped with a pressure plate, which has a through hole corresponding to the protrusion. The pressure plate is used to press the overlapping positions on both ends of the screen, and the connection between the pressure plate and the mounting plate is locked or unlocked by the first locking member.

[0013] Optionally, the protrusion includes a bolt, and the first locking member includes a nut, which is threaded onto the bolt.

[0014] Optionally, at least two screens are provided at intervals along the axial direction of the roller frame.

[0015] Optionally, along the axial direction of the roller frame, the roller frame is provided with support rings at intervals, the screen is arranged between two adjacent support rings, and the edge of the screen overlaps with the support ring; the second locking member includes a hose clamp, which locks or unlocks the connection between the edge of the screen and the support ring along the outer circumferential surface of the roller frame.

[0016] Optionally, at least two screens are spaced apart along the axial direction of the roller frame, and a first convex ring is provided on the outer wall of the support ring, with two adjacent screens located on both sides of the first convex ring.

[0017] Optionally, the outer wall of the support ring is provided with a second convex ring, which is disposed on both sides of the first convex ring, and the hose clamp is arranged between the first convex ring and the second convex ring.

[0018] This utility model also provides a separation device, including a body and the above-mentioned drum screen, wherein the drum screen is rotatably mounted on the body.

[0019] The technical solution provided by this utility model has the following beneficial effects: A flexible screen is used, with one side of the screen fitted onto the protrusion for positioning. The screen is then arranged around the circumference of the roller frame, and the other side's mounting hole is fitted onto the protrusion, thus completing the initial positioning of the screen and the roller frame. Subsequently, the screen and the protrusion are locked together by the first locking member, fixing both ends of the screen to the outer wall of the roller frame. Then, the screen and the roller frame are locked together by the second locking member along the outer circumference of the roller frame. This allows for easy disassembly or installation of the screen by a single person, improving work efficiency. Attached Figure Description

[0020] Figure 1 This is an exploded view of the drum frame and screen in this embodiment;

[0021] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 This is a schematic diagram of the screen in the unfolded state in this embodiment;

[0023] Figure 4 This is a front view of the roller frame in this embodiment;

[0024] Figure 5 yes Figure 4 Enlarged diagram of point B in the middle.

[0025] Explanation of reference numerals in the attached drawings: 1. Roller frame; 11. Protrusion; 111. Bolt; 12. Mounting plate; 13. Pressure plate; 14. Support ring; 141. First convex ring; 142. Second convex ring; 2. Screen; 21. Mounting hole; 211. First mounting hole; 212. Second mounting hole; 3. First locking element; 31. Nut; 4. Second locking element; 41. Hose clamp. Detailed Implementation

[0026] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0027] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0028] Reference Figure 1-5 This embodiment provides a rotary drum screen for easy replacement of the screen 2, including a drum frame 1, a screen 2, a first locking member 3, and a second locking member 4. Specifically, the outer wall of the drum frame 1 is provided with protrusions 11 spaced apart along the axial direction. The screen 2 is flexible and has a rectangular sheet structure when flattened. Along the circumferential direction of the drum frame 1, mounting holes 21 for fitting the protrusions 11 are provided on both sides of the screen 2. The screen 2 is fitted around the outer circumferential surface of the drum frame 1 through the mounting holes 21 on both sides and the fitting of the protrusions 11. The screen 2 is configured such that when the screen 2 is fitted around the outer circumferential surface of the drum frame 1, the beginning and end sides of the screen 2 overlap. The first locking member 3 is detachably connected to the protrusions 11 to lock or unlock the connection between the screen 2 and the protrusions 11. The second locking member 4 is detachably connected to the outer wall of the drum frame 1, and the second locking member 4 locks or unlocks the connection between the screen 2 and the drum frame 1 along the outer circumferential surface of the drum frame 1.

[0029] Thus, a flexible screen 2 is used, with its mounting hole 21 on one side correspondingly fitted onto the protrusion 11 for positioning. The screen 2 is then arranged around the roller frame 1, and the mounting hole 21 on the other side correspondingly fitted onto the protrusion 11, completing the initial positioning of the screen 2 and roller frame 1. Subsequently, the first locking member 3 locks the screen 2 and protrusion 11, fixing both ends of the screen 2 to the outer wall of the roller frame 1. The protrusion 11 not only provides initial positioning for the screen 2 during installation but also works with the first locking member 3 to lock the screen 2. Finally, the second locking member 4 locks the screen 2 and roller frame 1 together along the outer circumference of the roller frame 1. This allows for easy replacement of the screen 2 by a single person, improving work efficiency.

[0030] Furthermore, the mounting holes 21 on both sides of the screen 2 are defined as the first mounting hole 211 and the second mounting hole 212, respectively. Each protrusion 11 corresponds to one first mounting hole 211 and one second mounting hole 212, so that one first mounting hole 211 and one second mounting hole 212 are fitted together on one protrusion 11. This ensures that when the screen 2 is initially positioned around the outer wall of the roller frame 1, the stability between the screen 2 and the protrusion 11 can be maintained, which facilitates the subsequent locking work.

[0031] Furthermore, a mounting plate 12 is fixedly provided on the outer circumferential surface of the roller frame 1. The length direction of the mounting plate 12 is parallel to the axial direction of the roller frame 1, and protrusions 11 are fixedly fixed on the mounting plate 12 at intervals. When the locking member is locked to the protrusion 11, the mounting plate 12 ensures that the protrusion 11 has sufficient stability. Alternatively, the protrusions 11 can be arranged in two rows at intervals along the outer circumferential direction of the roller frame 1 on the mounting plate 12.

[0032] Furthermore, the mounting plate 12 is equipped with a pressure plate 13. The pressure plate 13 has a through hole corresponding to the protrusion 11. The pressure plate 13 is used to press the overlapping positions on both ends of the screen 2. The connection between the pressure plate 13 and the mounting plate 12 is locked or unlocked by the first locking member 3. Through the cooperation between the pressure plate 13 and the mounting plate 12, the overlapping part of the screen 2 is clamped between the mounting plate 12 and the pressure plate 13, increasing the contact area between the screen 2 and the mounting plate 12. Then, the first locking member 3 is used to lock it, improving stability.

[0033] Furthermore, the protrusion 11 includes a bolt 111, and the first locking member 3 includes a nut 31, which is threadedly connected to the bolt 111. The bolt 111 can be fixed to the mounting plate 12 by welding. The head of the bolt 111 is located inside the roller frame 1, and its threaded portion passes through the mounting plate 12 to facilitate the installation of the screen 2. The nut 31 can be a wing nut 31, so that the locking work can be completed by manually applying force to the nut 31; or a hexagonal nut 31 can be used, and an electric wrench can be used to install or remove the nut 31. In other embodiments, a threaded hole can be opened perpendicular to its axial direction on the outer wall of the protrusion 11, and a screw can be used as the first locking member 3 to lock in the threaded hole; however, this method is prone to creating a gap between the screw and the screen 2, and the screen 2 is prone to loosening during operation.

[0034] Furthermore, at least two screens 2 are spaced apart along the axial direction of the roller frame 1. In this embodiment, three screens 2 are provided. The length of the screens 2 along the axial direction of the roller frame 1 can be adjusted adaptively. If a single axially longer screen 2 is used to directly surround the entire outer wall of the roller frame 1, installation becomes more difficult and the installation stability is relatively poor.

[0035] Furthermore, along the axial direction of the roller frame 1, the roller frame 1 is provided with support rings 14 at intervals, and the screen 2 is arranged between two adjacent support rings 14. The edge of the screen 2 overlaps with the support ring 14, so that the end edge of the screen 2 maintains close contact with the support ring 14 after locking, thus ensuring the screening effect.

[0036] Furthermore, the second locking member 4 includes a hose clamp 41, which locks or unlocks the connection between the end edge of the screen 2 and the support ring 14 along the circumference of the roller frame 1. The hose clamp 41 ensures tight contact between the end edge of the screen 2 and the support ring 14, and facilitates installation and disassembly, making operation simple and convenient. In other embodiments, the first locking member 3 can also be locked by cooperating with the protrusion 11 on the outer circumference of the roller frame 1, but this requires opening holes in the screen 2 along the circumference of the roller frame 1, which makes the initial positioning of the screen 2 somewhat inconvenient.

[0037] Furthermore, a first protruding ring 141 is provided on the outer wall of the support ring 14, and two adjacent screens 2 are respectively located on both sides of the first protruding ring 141. The first protruding ring 141 is integrally connected to the support ring 14, and the overall strength of the support ring 14 can be improved by the provision of the first protruding ring 141.

[0038] Furthermore, the outer wall of the support ring 14 is provided with a second protruding ring 142, which is respectively arranged on both sides of the first protruding ring 141. The hose clamp 41 is arranged between the first protruding ring 141 and the second protruding ring 142. In this way, the hose clamp 41 can be guided and positioned when it is installed, which facilitates the installation of the hose clamp 41.

[0039] Detailed installation steps:

[0040] 1. Position the screen 2 by fitting the first mounting hole 211 on one side of the screen 2 onto the protrusion 11. Then, surround the screen 2 around the roller frame 1 and fit the second mounting hole 212 on the other side onto the protrusion 11. This completes the initial positioning of the screen 2 and the roller frame 1.

[0041] 2. Cover the overlapping positions on both sides of the screen 2 with the pressure plate 13, and at the same time, the bolt 111 passes through the through hole on the pressure plate 13, and then locks it to the bolt 111 with the nut 31;

[0042] 3. Secure the edge of the screen 2 to the support ring 14 using the hose clamp to complete the installation.

[0043] This embodiment also provides a separation device, including a body and the above-mentioned drum screen, wherein the drum screen is rotatably mounted on the body.

[0044] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A rotary screen with easily replaceable screen mesh, characterized in that, include: A roller frame, wherein the outer wall of the roller frame is provided with protrusions spaced apart along the axial direction; The screen is flexible and has a rectangular sheet structure when flattened. Along the circumference of the roller frame, mounting holes are provided on both sides of the screen for fitting onto the protrusions. The screen is fitted around the outer circumference of the roller frame through the mounting holes on both sides and the protrusions. The screen is configured such that when it is fitted around the outer circumference of the roller frame, the beginning and end portions of the screen overlap. A first locking member is detachably connected to the protrusion to lock or unlock the connection between the screen and the protrusion. The second locking member is detachably connected to the outer wall of the roller frame and is spaced apart at both ends of the screen along the axial direction of the roller frame; the second locking member locks or unlocks the connection between the screen and the roller frame along the outer circumferential surface of the roller frame.

2. A rotary screen for easy screen replacement according to claim 1, characterized in that: The mounting holes on both sides of the screen are defined as the first mounting hole and the second mounting hole, respectively. Each protrusion corresponds to one first mounting hole and one second mounting hole, so that one first mounting hole and one second mounting hole are fitted together on one protrusion.

3. A rotary screen for easy screen replacement according to claim 1 or 2, characterized in that: An mounting plate is provided on the outer peripheral surface of the roller frame. The length direction of the mounting plate is parallel to the axial direction of the roller frame, and the protrusions are fixed to the mounting plate at intervals.

4. A rotary screen for easy screen replacement according to claim 3, characterized in that: The mounting plate is equipped with a pressure plate, and the pressure plate has a through hole corresponding to the protrusion. The pressure plate is used to press the overlapping positions on both ends of the screen, and the connection between the pressure plate and the mounting plate is locked or unlocked by the first locking member.

5. A rotary screen for easy screen replacement according to claim 1, characterized in that: The protrusion includes a bolt, and the first locking member includes a nut, which is threadedly connected to the bolt.

6. A rotary screen for easy screen replacement according to claim 1, characterized in that: At least two screens are provided at intervals along the axial direction of the drum frame.

7. A rotary screen for easy screen replacement according to claim 1, characterized in that: Along the axial direction of the roller frame, the roller frame is provided with support rings at intervals, and the screen is arranged between two adjacent support rings, with the edge of the screen overlapping the support ring; the second locking member includes a hose clamp, which locks or unlocks the connection between the edge of the screen and the support ring along the outer circumference of the roller frame.

8. A rotary screen for easy screen replacement according to claim 7, characterized in that: At least two screens are spaced apart along the axial direction of the roller frame, and a first convex ring is provided on the outer wall of the support ring, with two adjacent screens located on both sides of the first convex ring.

9. A rotary screen for easy screen replacement according to claim 8, characterized in that: The outer wall of the support ring is provided with a second convex ring, which is disposed on both sides of the first convex ring, and the hose clamp is arranged between the first convex ring and the second convex ring.

10. A separation device, characterized in that: It includes a machine body and a drum screen as described in any one of claims 1-9, wherein the drum screen is rotatably mounted on the machine body.

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